*{
  margin: 0;
  padding: 0;
  list-style: none;
}
.container{
  width: 1124px;
  margin: 0 auto;
}
.tab{
  width: 1004px;
  margin: 0 auto;
  border:1px solid #aaa;
}
.tab_control{
  overflow: hidden;   
}
.tab_control li{
  width: 200px;
  float:left;
  background-color: #ccc;
  border-top: 3px solid #aaa;
  font:bold 22px/24px "宋体";
  text-align: center;
  cursor:pointer;
  color: #000;
}
.tab_control li.active{
  border-top:3px solid red;
  background-color: #fff;
  color:red;
}
.tab_control li +li{
    border-left: 1px solid #aaa;
}
.tab_content{
  width:1000px;
}
.tab_content .item{
  display: none;
}
.tab_content .item:first-child{
  display: block;
}
.tab_content .item img{
  width: 100%;
}